<template>
	<div class="login-box">
		<img src="../../static/img/Loginbg.3377d0c.jpg" alt="">
		<div class="login">
			<div class="login-title">
				<img src="../../static/img/Logotitle.1ba5466.png" alt="">
				<p>帮助有志向的年轻人通过努力学习获得体面的工作和生活!</p>
			</div>
			<div class="login_box">
				<div class="title">
					<span @click="login_type=0">密码登录</span>
					<span @click="login_type=1">短信登录</span>
				</div>
				<div class="inp" v-if="login_type==0">
					<input v-model = "username" type="text" placeholder="用户名 / 手机号码" class="user">
					<input v-model = "password" type="password" name="" class="pwd" placeholder="密码">
					<div id="geetest1"></div>
					<div class="rember">
						<p>
							<input type="checkbox" class="no" v-model="remember"/>
							<span>记住密码</span>
						</p>
						<p>忘记密码</p>
					</div>
					<button class="login_btn" @click="loginhander">登录</button>
					<p class="go_login" >没有账号 <router-link to="/reg">立即注册</router-link></p>
				</div>
				<div class="inp" v-show="login_type==1">
					<input v-model = "username" type="text" placeholder="手机号码" class="user">
					<input v-model = "password"  type="text" class="pwd" placeholder="短信验证码">
          <button id="get_code">获取验证码</button>
					<button class="login_btn">登录</button>
					<p class="go_login" >没有账号 <router-link to="/reg">立即注册</router-link></p>
				</div>
			</div>
		</div>
	</div>
</template>

<script>
export default {
  name: 'Login',
  data(){
    return {
        login_type: 0,
        username:"",
        password:"",
        remember:"",
        is_geek:false,
    }
  },
  mounted(){
    // 请求后端获取生成验证码的流水号
    this.$axios.get(this.$settings.Host + "/users/captcha/",{
      responseType: 'json', // 希望返回json数据
    }).then(response => {
      let data = response.data;

      // 验证初始化配置
      initGeetest({
        gt: data.gt,
        challenge: data.challenge,
        product: "popup", // 产品形式，包括：float，embed，popup。注意只对PC版验证码有效
        offline: !data.success
      },this.handlerPopup)
    }).catch(error => {
      console.log(error.response);
    });
  },
  methods:{
    // 用户登录
    loginhander(){
      // 判断用户是否已经通过了极验验证
      if(!this.is_geek){
        return false;
      }

      this.$axios.post(this.$settings.Host+"/users/login/",{
        username:this.username,
        password:this.password,
      }).then(response=>{
        let data = response.data
        // 根据用户是否勾选了记住密码来保存用户认证信息
        if(this.remember){
          // 记住密码
          localStorage.token = data.token;
          localStorage.user_id = data.id;
          localStorage.user_name = data.username;

        }else{
          // 不需要记住密码
          sessionStorage.token = data.token;
          sessionStorage.user_id = data.id;
          sessionStorage.user_name = data.username;
        }

        // 登录成功以后,跳转会上一个页面
        this.$router.go(-1);

      }).catch(error=>{
        console.log(error.response)
      })
    },
    // 验证码的成功验证事件方法
    handlerPopup(captchaObj){
       // 把验证码添加到模板中制定的页面
       captchaObj.appendTo("#geetest1");

       // 记录vue对象
       let _this = this;

       // 监听用户对于验证码的操作是否成功了
       captchaObj.onSuccess(()=>{
          var validate = captchaObj.getValidate();

          _this.$axios.post(_this.$settings.Host+"/users/captcha/",{
              geetest_challenge: validate.geetest_challenge,
              geetest_validate: validate.geetest_validate,
              geetest_seccode: validate.geetest_seccode
          }).then(response=>{
              // 在用户成功添加数据以后,可以允许点击登录按钮
              _this.is_geek = true;

          }).catch(error=>{
              console.log(error.response)
          })

        });

    },
  },

};
</script>
<style scoped>
.login-box{
    width: 100%;
    height: 100%;
    position: relative;
    overflow: hidden;
    margin-top: -80px;
}
.login-box img{
    width: 100%;
    min-height: 100%;
}
.login-box .login {
    position: absolute;
    width: 500px;
    height: 400px;
    left: 0;
    margin: auto;
    right: 0;
    bottom: 0;
    top: -220px;
}
.login .login-title{
     width: 100%;
    text-align: center;
}
.login-title img{
    width: 190px;
    height: auto;
}
.login-title p{
    font-size: 18px;
    color: #fff;
    letter-spacing: .29px;
    padding-top: 10px;
    padding-bottom: 50px;
}
.login_box{
    width: 400px;
    height: auto;
    background: #fff;
    box-shadow: 0 2px 4px 0 rgba(0,0,0,.5);
    border-radius: 4px;
    margin: 0 auto;
    padding-bottom: 40px;
}
.login_box .title{
    font-size: 20px;
    color: #9b9b9b;
    letter-spacing: .32px;
    border-bottom: 1px solid #e6e6e6;
    display: flex;
    justify-content: space-around;
    padding: 50px 60px 0 60px;
    margin-bottom: 20px;
    cursor: pointer;
}
.login_box .title span:nth-of-type(1){
    color: #4a4a4a;
    border-bottom: 2px solid #84cc39;
}

.inp{
    width: 350px;
    margin: 0 auto;
}
.inp input{
    outline: 0;
    width: 100%;
    height: 45px;
    border-radius: 4px;
    border: 1px solid #d9d9d9;
    text-indent: 20px;
    font-size: 14px;
    background: #fff !important;
}
.inp input.user{
    margin-bottom: 16px;
}
.inp .rember{
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    margin-top: 10px;
}
.inp .rember p:first-of-type{
    font-size: 12px;
    color: #4a4a4a;
    letter-spacing: .19px;
    margin-left: 22px;
    display: -ms-flexbox;
    display: flex;
    -ms-flex-align: center;
    align-items: center;
    /*position: relative;*/
}
.inp .rember p:nth-of-type(2){
    font-size: 14px;
    color: #9b9b9b;
    letter-spacing: .19px;
    cursor: pointer;
}

.inp .rember input{
    outline: 0;
    width: 30px;
    height: 45px;
    border-radius: 4px;
    border: 1px solid #d9d9d9;
    text-indent: 20px;
    font-size: 14px;
    background: #fff !important;
}

.inp .rember p span{
    display: inline-block;
    font-size: 12px;
    width: 100px;
  /*position: absolute;*/
/*left: 20px;*/

}
#geetest{
	margin-top: 20px;
}
.login_btn{
     width: 100%;
    height: 45px;
    background: #84cc39;
    border-radius: 5px;
    font-size: 16px;
    color: #fff;
    letter-spacing: .26px;
    margin-top: 30px;
}
.inp .go_login{
    text-align: center;
    font-size: 14px;
    color: #9b9b9b;
    letter-spacing: .26px;
    padding-top: 20px;
}
.inp .go_login span{
    color: #84cc39;
    cursor: pointer;
}
</style>
